Nasal strips for issues with nasal breathing. Nasal strips can provide immediate relief for problems with nasal breathing. They work purely mechanically and are therefore free from medicinal ingredients. When do the nasal strips help? They assist with nasal breathing issues, snoring, and during exertion or sports. The product may need to be used continuously for a week to achieve an effect. If there is no improvement, consult a doctor. Clean the nose before applying the strip.